I sure hope this was the correct thing to do. The reason I am worried because I read that damage to the bile duct can cause complications. However, maybe this isn't considered a complication because of the way it was performed. Thanks for your response.
Hopefully it will help. Usually before the cut is made the ERCP is done with a component called manometry which measures the pressures in the common bile duct or at the sphincter. If the pressures are raised, the muscle is cut.
But the surgeon may have felt this was the best option.